Question

EASY QUESTION!!!!!

A test consists of multiple choice questions worth 3 points and essay questions worth 5 points. The test has 17 questions that are worth a total of 65 points. Use a model to determine how many multiple choice questions are on the test.

A. 10

B. 11

C. 12

D. 13

Answer 1

3x + 5y = 65
x+y = 17
solve for x

Answer 2

Is it 10?

Answer 3

x = 17-y
3(17-y) +5y = 65
51-3y +5y = 65
51 + 2y = 65
2y = 65-51 = 14
y = 7
x = 17-7 = 10, YES

Answer 4

He he I knew it. Thanks :-)